Multiple cross-site scripting (XSS) vulnerabilities in the meta plugin (Plugin/meta.pm) in ikiwiki before 3.20120516 allow remote attackers to inject arbitrary web script or HTML via the (1) author or (2) authorurl meta tags.

ikiwiki before 3.20110328 does not ascertain whether the htmlscrubber plugin is enabled during processing of the "meta stylesheet" directive, which allows remote authenticated users to conduct cross-site scripting (XSS) attacks via crafted Cascading Style Sheets (CSS) token sequences in (1) the default stylesheet or (2) an alternate stylesheet.

Cross-site scripting (XSS) vulnerability in the htmlscrubber component in ikiwiki 2.x before 2.53.5 and 3.x before 3.20100312 allows remote attackers to inject arbitrary web script or HTML via a crafted data:image/svg+xml URI.

Incomplete blacklist vulnerability in the teximg plugin in ikiwiki before 3.1415926 and 2.x before 2.53.4 allows context-dependent attackers to read arbitrary files via crafted TeX commands.

Plugin/passwordauth.pm (aka the passwordauth plugin) in ikiwiki 1.34 through 2.47 allows remote attackers to bypass authentication, and login to any account for which an OpenID identity is configured and a password is not configured, by specifying an empty password during the login sequence.

Cross-site scripting (XSS) vulnerability in the meta plugin in Ikiwiki before 1.1.47 allows remote attackers to inject arbitrary web script or HTML via meta tags.